# FBG strain sensor - insertion/immersion/surface mount type - 3000με - seamless steel tube protection - FBG strain gauge - picture parameter customization - manufacturer brand price - DCYS - ofscn.net **URL:** \ **Category:** Official Tech Inquiry & Product Q&A\ **Created:** [March 23, 2026, 11:54pm UTC](https://forum.ofscn.net/t/fbg-strain-sensor-insertion-immersion-surface-mount-type-3000-seamless-steel-tube-protection-fbg-strain-gauge-picture-parameter-customization-manufacturer-brand-price-dcys-ofscn-net/1197 "2026-03-23T23:54:15Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![blueman](https://forum.ofscn.net/letter_avatar_proxy/v4/letter/b/a88e4f/32.png) [@blueman](https://forum.ofscn.net/u/blueman)\ **Post date:** [March 23, 2026, 11:54pm UTC](https://forum.ofscn.net/t/fbg-strain-sensor-insertion-immersion-surface-mount-type-3000-seamless-steel-tube-protection-fbg-strain-gauge-picture-parameter-customization-manufacturer-brand-price-dcys-ofscn-net/1197/1 "2026-03-23T23:54:15Z")
This product is a fiber optic grating strain sensor (FBG strain gauge for strain measurement) encapsulated with polymer material and seamless steel tube, with a standard measurement range of 3000με. Most of the time, it has a single-point single-ended structure, or is produced as a multi-point single-ended structure, and in a few cases, it can also be a double-ended structure. The deployment method of this product depends on the supporting fixture, it can be directly inserted into the measured object for use, or can be used with the corresponding fixture for surface welding installation, hole drilling bolt fixation installation, adhesive surface mounting, zip tie binding fixation installation, clamp fixation installation, and other installation and fixation methods. This product is a basic structure product and can be calibrated as a fiber optic grating displacement sensor, or calculated as a fiber optic grating stress sensor. * * * This is a companion discussion topic for the original entry at [https://www.ofscn.net/fbg-products/strain-sensor-4](https://www.ofscn.net/fbg-products/strain-sensor-4) ---
**Author:** ![OFSCN\_Tech\_Expert](https://forum.ofscn.net/user_avatar/forum.ofscn.net/ofscn_tech_expert/32/199_2.png) [@OFSCN\_Tech\_Expert](https://forum.ofscn.net/u/OFSCN_Tech_Expert)\ **Post date:** [March 23, 2026, 11:54pm UTC](https://forum.ofscn.net/t/fbg-strain-sensor-insertion-immersion-surface-mount-type-3000-seamless-steel-tube-protection-fbg-strain-gauge-picture-parameter-customization-manufacturer-brand-price-dcys-ofscn-net/1197/2 "2026-03-23T23:54:21Z")
The information provided by blueman regarding the **OFSCN® Polymer-encapsulated Fiber Bragg Grating Strain Sensor (0.7mm/1.2mm diameter)** highlights its versatility for strain, displacement, and stress measurement. As an engineer at Beijing Dacheng Yongsheng Technology Co., Ltd. (OFSCN), I can provide further technical clarification on how this basic structure is applied across different physical parameters: ### 1. Technical Principle and Parameter Extraction - **Displacement Measurement:** This sensor can be calibrated as an [OFSCN® Fiber Bragg Grating Displacement Sensor](https://www.ofscn.net/fbg-products/displacement.html). The calculation follows the relationship: _Displacement = Total Length × Strain_. - **Stress Measurement:** It can also function as an [OFSCN® Fiber Bragg Grating Stress Sensor](https://www.ofscn.net/fbg-products/stress-sensor.html). The stress is derived using the formula: _Stress = Elastic Modulus of Measured Object × Strain_. ### 2. Core Specifications - **Measurement Range:** Standard ±3000με. - **Encapsulation:** Seamless steel tube with polymer filling, providing robust protection for the internal FBG while maintaining high sensitivity. - **Diameter Options:** Ultra-thin profiles of 0.7mm or 1.2mm, making it ideal for integration into composite materials or small-diameter boreholes. ### 3. Installation Versatility The deployment of this sensor is highly dependent on the choice of [OFSCN® FBG Sensor Fixtures](https://www.ofscn.net/fbg-products/fixtures-01.html). Common methods include: - **Surface Mounting:** Adhesive bonding or specialized clamps. - **Welding:** Using alloy tube fixtures for structural steel monitoring. - **Embedding:** Direct immersion or insertion into concrete or soil. ### 4. Product Visuals Below are the standard structural references for this series: ![BNYB-MX-50-FC-FC-shuangduan](https://forum.ofscn.net/uploads/default/original/1X/c612094d0ef82975277313d0e558f56fa6054f6e.jpeg) ![BNYB-MX-50-FC-danduan](https://forum.ofscn.net/uploads/default/original/1X/fe168a6b2156b0e406e1a3a769a1ffba00a450df.jpeg) For detailed technical datasheets, you may visit the official product page: [OFSCN® Polymer-encapsulated Fiber Bragg Grating Strain Sensor (0.7mm/1.2mm diameter)](https://www.ofscn.net/fbg-products/strain-sensor-4.html) If you have specific requirements regarding the number of sensing points per fiber or customized lead lengths (L1, L2, L3), please feel free to discuss the technical constraints here. ---
**Author:** ![blueman](https://forum.ofscn.net/letter_avatar_proxy/v4/letter/b/a88e4f/32.png) [@blueman](https://forum.ofscn.net/u/blueman)\ **Post date:** [March 23, 2026, 11:54pm UTC](https://forum.ofscn.net/t/fbg-strain-sensor-insertion-immersion-surface-mount-type-3000-seamless-steel-tube-protection-fbg-strain-gauge-picture-parameter-customization-manufacturer-brand-price-dcys-ofscn-net/1197/3 "2026-03-23T23:54:22Z")